Improvement in automatic boiler-feedebs



PATEQNTED AUG. 4,186.8.

SLDRIVBR.

AUTOMATIC BQIL R FEEDER.

. Z N I @[nitrb gratis 33mm @ffirm,

SELF AND ROBERT H. DRIVER, OF SAME PLACE.

Letters Patent No. 80,536, dated August 4, 1868.

IMPROVEMENT 1r A TOMATIdBOILER-Ensures.

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TO ALL WHOM IT MAY C ONOERN:

Be it known that I, SAMUEL DRIVER, of the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in. Automatic Boiler-Feeders; and I def hereby declare that the following isa full and exact description thereof, reference beinghad to the accompanying drawings, and to the letters of reference marked thereon. t

The nature of my invention consists of an automatic boiler-feeder, so constructed and arranged in relation to the feed-pipe and boiler as to convey the water from the former to the latter at regular intervals, and keep up 'a regular height ofwater, the apparatus consisting of two receivers, arrzinged vertically with each other, and having their communication with each other, and with the feed-pipe and boiler, eachopened and closed alternately by means of revolving valves, whose shafts have an intermittent gearing, with a central shaft, which is driven by the steam-engine or intermediate shaft.

The arrangement and operation of the apparatus will be understood by the following description.

In the accompanying drawings Figure 1 is a front elevation of the apparatus.

Figure 2 is a side view at right angles to the same.

Figure 3 is a. vertical section at the line a b of fig. 1.-

Like letters in all the figures indicate the same parts.

A is a casting, which has chambers, 13 and B, which have a. communicating-passage, a.

The feed-pipe, which is not shown in the drawings, has communication with the chamber Bby means of the opening I), with which one end is connected, and the chamber B has communication with the supply-pipc 0, represented by dotted lines, by means of the passage 0. 1

D is a driving-shaft, which passes through the chamber D, and should be provided with stuffing-boxes.

On one end of saidshaft there is a pulley, E, which, by means of a belt, has connection with the drivingshaft of the engine, or an intermediate shaft. v

On the other end of said shaft D there is a wheel, F, which has two scriesof teeth, 6! d d and d d d, by means of which it has an intermittent gearing with pinion F, on the projecting end of the rotary valve G, which communicates with the passage a.

7 There are two other series of teeth, a e c and c e e, in another, line of the wheel F, which have a like intermittent gearing with the pinion F on the projecting end of the rotary valve G.

The operation is asfollows:

As the shaftD revolves in the direction of'thc arrow, by means of the series of teeth above mentioned, it has an intermittent action,.rcspectivoly, on the valves G and Gthrough the pinions F F, so as to open and close the passages a and c alternately. Consequently, when the passage a is closed above the valve G, and the valve G being open, the water in the chamber B descends into the boiler, aud stcam will take its place, and

before the valve G is opened, the valve G is closcihns represented in fig. 3, to cut oil' the pressure of steam from the boiler. And when the valve G is opened, the water presses forward from the chamber 13 and feedpipc, and condenses the steam in the chamber B, and takes its place- The alternate action of the valves is thus kept up, by which a regular supply of water is kept up, and the supply-pipe communicating with the boiler at the water-line, the regular depth of water is maintained.

What I claim as my invention,'and desire to secure by Letters Patent, is-

The combination and arrangement of the chambers 13 and D and valves G and G, provided .with pinions F and F and operated by means of the wheel F, on the driving-shaft D, substantially in the manner above described. V

In testimony whereof, I have hereunto set my hand and afiixed my seal, this third day of January,'1868.

' SAMUEL DRIVER. [I4- 5.]

Witnesses:

Srnrmzx USTICK, J our: Wnrrn. 

